期刊
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 10, 期 1, 页码 128-132出版社
SPRINGERNATURE
DOI: 10.1039/c0pp00273a
关键词
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资金
- National Natural Science Foundation of China [20871040, 20901022]
- Program for New Century Excellent Talents in University [NCET-09-0113]
- Tianjin Natural Science Foundation [09JCYBJC05700]
- Scientific Program of Hebei Province [08965110D]
- Hebei Province Natural Science Foundation for Distinguished Young Scholars [B2010000034]
Novel core-shell composites have been developed by immobilization of non-luminescent europium(III) complexes onto the surface of silica shells that are coated on the surface of luminescent dye-loaded zeolite L nano-crystals. The obtained core-shell composites were used for the ratiometric detection of dipicolinic acid (DPA) molecules. The dyes located in the channels of the zeolite L host are protected from any interaction with the environment of the particles and therefore provide a stable reference signal which can eliminate the need for instrument-specific calibration curves for DPA quantification in an analyte.
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